4 Express Trains: Hold and Win is an online slot developed by ENJOY Gaming that crosses a classic fruit machine with the romance of steam railways. The key art sets the tone straight away: four vintage locomotives in red, purple, green and blue race towards the screen on glowing tracks, their headlamps blazing through streaks of neon light. Inside the game the reels sit on a dark, fiery background with a loaded freight wagon and a red engine puffing smoke above the grid, while the symbols themselves stay deliberately retro, with cherries, lemons, oranges, plums, grapes, watermelons, BAR icons and lucky sevens. The look is slick and high-contrast, and the soundtrack mixes rhythmic train sounds with punchy electronic stings whenever a locomotive lands.
The format is compact: 5 reels, 3 rows and 5 fixed paylines, which keeps the base game quick and easy to read. What gives the slot its identity is the number of bonus routes. Each coloured train leads to its own Hold and Win round with a different value range and prize focus, and a separate Red Super Bonus is reserved for jackpot hunters. A ladder of fixed jackpots is visible above the reels, and a bonus buy is available for those who prefer to board the feature directly. The overall pace is brisk, with short base game spins punctuated by respin rounds that can change direction depending on which train arrives.
This is a slot for players who enjoy the simplicity of fruit symbols but want more variety than a single bonus round can offer. Fans of ENJOY's earlier Hold and Win titles will recognise the clean presentation, while newcomers get a clear objective on every spin: line up six matching trains. The next sections explain how the four bonuses differ and what the maths behind them means for a session.
In the base game, line wins on the 5 paylines come from classic fruit symbols, BARs and sevens, but the real target is the train symbols. Landing six matching trains of the same colour sends the player into that train's Hold and Win bonus. If a spin falls just short, the Extra Bonus Trigger can step in and top up the screen so the round still begins, which turns some near misses into features. Every bonus starts with 3 respins: collected symbols lock in place and each new arrival resets the counter.
The Green, Blue and Purple Express bonuses share the same structure but use their own value ranges and matching jackpot. In these three rounds the Mystery Train can appear, and at the end of the feature it reveals one of four jackpots, Mini, Minor, Maxi or Major. Throughout any bonus, multipliers of x2, x3, x4 or x5 can land on cells and stack additively, so an x3 followed by an x4 becomes x7 on the same position. When the respins run out, a train crosses the screen and its carriages reveal the hidden values before everything is totalled.
The Red Express is the special case. In the Red Super Bonus, regular cash values disappear entirely and every symbol that lands pays one of the four jackpots instead. In any of the bonuses, filling all 15 cells adds the Grand Jackpot of 1,000x the bet on top of the round's other wins. Players who prefer not to wait can buy a random train bonus for 100x the stake or go straight to the Red Super Bonus for 300x.
With an RTP of 95.66%, 4 Express Trains returns a little less than the 96% figure often treated as the market norm, and its volatility is rated medium. That combination produces a fairly balanced session profile. The 5 paylines will not carry the balance on their own, yet the six-train trigger and the Extra Bonus Trigger mean features appear often enough to keep the game moving, and most of the value is delivered inside those rounds.
The maximum win is capped at 1,410x the bet, which places the game in a moderate bracket compared with high-volatility jackpot slots. That ceiling matches the design: the Grand Jackpot pays 1,000x for a full screen, and the remaining potential comes from jackpots, multipliers and cash values collected in the same round. The Red Super Bonus is the route most likely to produce bigger totals, since every symbol in it carries a jackpot prize, but it is also the most expensive to buy.
In practice, players can expect regular small returns, frequent visits to the coloured bonuses and occasional stronger rounds when multipliers stack or the Mystery Train reveals a higher jackpot. The bonus buy changes how quickly the features arrive rather than the long-term balance, so it suits those who already know they enjoy this style. With stakes from 0.10 to 100 per spin, the game is flexible, and its medium risk makes it a comfortable choice for longer sessions.
Based on reviews
Bought the Red Super Bonus twice. First time was average, second time three Majors landed with an x3 stacked on one of them and I got a bit over 700x. Volatility feels medium like they say, no crazy dry spells.
Love the four colourful trains on the intro screen, and the fruit symbols are crisp on mobile. Base game is pretty basic with only 5 lines, but the bonuses come round regularly enough.
The Extra Bonus Trigger saved me a few times, five purple trains and it topped up the sixth. Mystery Train revealed the Maxi at the end of that round. Good mix of features for a fruit game.
I compared the 95.66% RTP and medium volatility with other Hold and Win games and it sits in the middle. Sessions last a decent while on a small budget. The 1,410x cap is low-ish, so this is more for steady fun than huge hits.
Filled all 15 cells on the green train and got the 1,000x Grand on top of the coins. The carriage reveal at the end is a great bit of tension. Best ENJOY game I've played.
Plus 100 free spins on top slots. Limited-time offer — claim it before it expires.
Claim my bonus18+. T&Cs apply. Play responsibly.